Asolenoid has a uniform turn density, except near the ends, where extra turns are added to obtain a higher magnetic induction thn near the center. show qualitatively that, if the axial velocity is not too large, a charged paticle that spirals along the axis in a vacuum inside the solenoid will be relfected back when it reaches the higher magnetic field. the regions of higher magnetic field are called magnetic mirrors.

If 1 lb of fat is stored by the body for each 14.6×103kj of excess nutritional energy consumed, how long will it take this person to gain 1 lb?

Ascientist is tracking an object orbiting the sun that is found between mars and jupiter. in order to classify the object as an asteroid, it must be at least

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.